An approach to the spatial and temporal distribution of marine debris stranded on Las Canteras Beach is developed by means of surveys carried out during one year, along three transects located on the southern, northern, and central parts of the beach. Results evidence that debris stranded on the beach represent an almost permanent type of pollution, but with a large time variability in the number of items observed along the three transects, as well as in the type and origin of the debris collected at the different stretches of the beach.